>> reporter: the fbi just wrapped up a news conference here in los angeles at the federal building. and we did learn more about this group, made from different ethnic groups, and they are all part of what the fbi is saying a very serious home-grown terrorist network, with a singular plan, to kill americans overseas and they hatched that plan right here in southern california. an event so unusual at this normally quiet home, that neighbor jen collins snapped pictures from her front window. she was so alarmed, she didn't fully open the blinds, but could see federal agents descending on the home of her neighbor, now charged in a terrorist conspiracy. >> it's kind of like shocking, like, well, they say for my son to go outside, like, it kills me. >> reporter: according to the criminal complaint, the apparent ringleader is omar kabir, born in afghanistan. one of the defendants refer to him as a mujahideen. they say they shared violent and extremist material on facebook, including video messages from anwar al awlaki, the now deceased leader of al qaeda in the arabian peninsula, and they l